User interface for a portion of a display screen



The sole FIGURE is a front view of a user interface for a portion of adisplay screen showing our new design.

The broken line showing of a portion of a display screen is included forthe purpose of illustrating environmental structure and forms no part ofthe claimed design. The text and other portions of the user interfaceshown in broken lines form no part of the claimed design.

The ornamental design for a user interface for a portion of a displayscreen, as shown and described.